REFERENCE. All National Grid personnel who plan and perform work involving protected water resources are responsible for:

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1 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 1 of 9 DATE 10/1/10 EP 3 Natural Resource Protection 1.0 SCOPE AND RESPONSIBILITIES National Grid s New York service territory encompasses thousands of wetlands, lakes, rivers, streams, and other water bodies that are regulated by various Federal and New York State environmental regulations. Many of National Grid s transmission and distribution facilities, in particular, cross and/or pass near to these protected water resources. All National Grid personnel who plan and perform work involving protected water resources are responsible for: identifying if proposed work may involve protected water resources; obtaining any required regulatory agency permits or approvals; notifying Environmental or regulatory agencies of emergency work activities that involve protected water resources; and, implementing appropriate design, work site selection, scheduling, and practices to avoid or minimize disturbances to such water resources. Environmental Engineers and/or environmental consultants will provide support and assistance to National Grid personnel who assume these responsibilities. As described in EG-301NY, Project Planning and Permitting, Project Engineers and other personnel who are planning work are to use an environmental checklist for considering the potential presence of protected waters. The Environmental Engineer and/or environmental consultant will assist with the identification of protected waters by checking available regulatory agency information, such as GIS databases and mapping sources..0 REGULATED WETLANDS The NYSDEC regulates freshwater wetlands that are 1.4 acres or greater in size. Wetlands smaller than this may be protected if they are considered of unusual local importance. The NYSDEC also regulates a 100 feet adjacent area around such freshwater wetlands. All such wetlands are depicted on official NYSDEC wetland maps. In addition to freshwater wetlands, the NYSDEC regulates tidal wetlands and a 300 feet (150 feet in New York City) adjacent area around such tidal wetlands. The APA regulates wetlands in the Adirondack Park that are 1 acre or greater in size. Some of the APA wetlands are mapped; however, some are not mapped and may require an official determination by the APA and/or a formal delineation by a qualified wetland consultant. On a case-by-case basis, the APA may also regulate the wetland buffer or adjacent area, particularly with regard to any potential runoff of pollutants.

2 EG-30NY ENVIRONMENTAL GUIDANCE PAGE of 9 DATE 10/1/10 EP 3 Natural Resource Protection The U.S. Army Corps of Engineers (ACOE) also has jurisdiction over all NYSDEC and APA wetlands, as well as over smaller wetlands. Federal wetlands have no minimum size but must meet eligibility criteria for vegetation types, soils types, and connection to other waters of the U.S. Some Federal wetlands are mapped by the National Wetlands Inventory (NWI); however, some are not mapped and may require formal delineation by an ACOE representative or a qualified wetland consultant. The ACOE does not regulate a wetland adjacent area. Regulated work activities in state and federal wetlands include excavating, trenching, auguring, backfilling, grading, digging, structure erection and removal, and other activities that may disturb the ground surface or water levels, flows, and functions of wetlands. Regulated work activities can also include driving or operating equipment within protected wetland areas, particularly if such equipment uses causes rutting of wetland soils. 3.0 PROTECTED STREAMS AND OTHER SURFACE WATERS The NYSDEC regulates activities that impact the beds, banks, and water quality of streams and other surface water bodies that have sufficient water quality to support trout and/or higher uses of water, such as cooking and drinking. Simply driving equipment across a regulated water body is a regulated activity that requires a permit. The NYSDEC typically regulates activities within 50 feet of protected waters. The ACOE regulates activities conducted under, in, and over navigable waters of the U.S. The installation of natural gas or electric facilities across major streams, rivers, and lakes is regulated by the ACOE. 4.0 NYSDEC AND APA PERMITTING National Grid has a General Permit with the NYSDEC that authorizes the following activities involving NYSDEC wetlands and their 100 feet adjacent areas, as well as protected waters: A) Vehicular and equipment crossings B) Maintenance of in-kind existing facilities C) Small excavations and fills D) New minor construction to install new single family residential live service across a freshwater wetland, 100 feet adjacent area or protected stream E) Vegetation management

3 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 3 of 9 DATE 10/1/10 EP 3 Natural Resource Protection The NYSDEC General Permit ( /00001) requires notification of the proposed activity to the NYSDEC, no later than 45 days prior to project commencement. If no response is received from the NYSDEC, the work may proceed in accordance with the General Permit conditions and Best Management Practices (BMPs). The NYSDEC General Permit ( /00001) is provided on National Grid s Infonet (see the Environmental site). NYSDEC General Permit /00001 includes 6 Natural Resource Permit Conditions that apply to Articles 15 and 4 of the Environmental Conservation Law (ECL) and to Water Quality Certification. Although compliance with all 6 permit conditions is required, the following selected conditions are cited or summarized, herein, simply to highlight their applicability to work involving these NYSDEC-protected wetland and water resources: 8. Prohibition Period for In-stream Work: The general period which prohibits stream work is as follows: a) for cold water trout fisheries, beginning October 1 and ending May 31 b) for warm water fisheries, beginning March 1 and ending July Erosion Control Devices: To prevent environmental degradation, practicable measures and devices (such as silt fences, straw bales, check dams, catchment basins, sediment retention basins, water bars, diversion culverts, and other appropriate measures) shall be employed wherever necessary to prevent erodible soils from entering the wetland or water body. 18. Maintain Water Flow and Water Clarity: During periods of work activity, flow immediately downstream of the worksite shall equal flow immediately upstream of the worksite, unless specifically permitted by the NYSDEC. There shall be no discernible difference in clarity between waters upstream and downstream of the work site. 0. Preventing Transport of Invasive Species: National Grid has conservatively assumed that one or more species of NYSDEC-listed invasive plants occurs within or otherwise infests all NYSDEC wetlands and their 100 feet adjacent areas, as well as protected waters. To prevent the spread of invasive plant specie seeds, roots or other viable plant parts, equipment used in NYSDEC wetlands and their 100 feet adjacent areas, as well as protected waters, shall be power-washed and cleaned with clean water (no soaps or chemicals) before leaving these protected areas. The invasive material cleaned from such work areas may remain within these areas, provided that no filling of a wetland shall occur. Loose plant and soil material that has been

4 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 4 of 9 DATE 10/1/10 EP 3 Natural Resource Protection removed from personnel clothing and boots may also remain within these areas, provided that no filling of a wetland shall occur. The wash water, including spray, shall not be discharged within 30 meters of any stream, wetland, 100 feet adjacent area or stormwater conveyance (ditch, catch basin, etc.). In planning for such equipment cleaning, a forestry and/or wetland matting contractor should be contacted to provide such services (as well as to provide erosion control device installations, maintenance and removal). 4. Wetland Resource Protection: Replacement of penta-treated poles in NYSDEC wetlands, within NYSDEC wetland 100 feet adjacent areas that support protected species and within NYSDEC wetlands with endangered or threatened species, species of special concern or species of greatest conservation need shall be accomplished with treated wood poles that have been air-dried for at least three months prior to replacement. Poles cannot be replaced during the known breeding period of the endangered, threatened, species of special concern, or species of greatest conservation need. Construction or vehicular activities within such 100 feet adjacent areas should be minimized during the breeding period of any protected species present. Erosion control measures shall be utilized as needed to prevent potential erosion of sediments into the wetland or the 100 feet adjacent area. Emergency Actions (Administrative and Enforcement Condition 9): The appropriate NYSDEC Regional Natural Resources Supervisor must be notified by telephone (see the General Permit s Attachment C for contact information) before starting an emergency action and such telephone notification must include a description and location of the situation and of the action that will be taken. If the Natural Resources Supervisor cannot be reached, a telephone or electronic mail notification must be made within 4 hours of commencing the emergency action and must include the same information, to be provided on the General Permit s Attachment A Notification of General Permit Project form. National Grid also has a General Permit ( /00013) with NYSDEC Region 1 (Nassau and Suffolk Counties) that authorizes certain minor utility installation, repair, and maintenance activities in the adjacent areas of state regulated freshwater and tidal wetlands, and scenic/recreational rivers throughout Nassau and Suffolk counties. This General Permit requires notification of the proposed activity to the NYSDEC, no later than 14 days prior to project commencement. The notification package must include a detailed description of the project, design drawings, applicable wetlands maps, and recent project site photographs. If no response is received from the NYSDEC, the work may proceed in accordance with the General Permit conditions and BMPs. NYSDEC General Permit /00013 is provided on National Grid s Infonet, Environmental site.

5 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 5 of 9 DATE 10/1/10 EP 3 Natural Resource Protection Certain routine maintenance activities involving Adirondack Park wetlands may be eligible for a General Permit issued by the Adirondack Park Agency. Larger scale projects or major work activities involving NYSDEC or APA wetlands or NYSDEC-protected waters may require an individual NYSDEC or APA permit and a Section 401 Water Quality Certification (a determination by the NYSDEC that the proposed activity will not violate New York Water Quality Standards). The NYSDEC may, as a result of its review, assign special conditions to ensure that water quality is protected, and environmental damage is minimized. The NYSDEC s Stormwater Pollution Prevention Plan (SWPPP) requirements may also apply to work activities if more than 1 acre of soils will be disturbed. If so, work will need to conform to the NYSDEC s SPDES General Permit GP and associated erosion and sediment control requirements. The NYSDEC SPDES General Permit for Stormwater Discharges from Construction Activities (GP ) is provided on National Grid s Infonet (see the Environmental site). 5.0 U.S. ARMY CORPS OF ENGINEERS PERMITTING For certain maintenance and minor work activities involving Federal wetlands, the ACOE also provides for a general type of permitting. In general, activities involving less than 0.1 acre of wetland impacts are eligible for the ACOE s Nationwide Permitting, on a selfauthorized basis, as long as permit conditions and Best Management Practices (BMPs) are adhered to (a blanket 401 Water Quality Certification is included). Activities involving from 0.1 to 0.5 acres of wetland impacts may still be eligible for ACOE Nationwide Permitting, but require a Pre-Construction Notice (PCN) to be made to the ACOE, require an individual 401 Water Quality Certification, and normally require mitigation of impacts. Activities involving greater than 0.5 acres of wetland impacts typically require an individual Section 404 permit and mitigation of impacts. For work over, in, or under navigable waters of the U.S., an ACOE Section 10 (Rivers and Harbors Act) permit is required. For projects that are either in or affecting the coastal zone and that require a Federal permit or approval, a Coastal Zone Management (CZM) consistency concurrence is required from the New York State Department of State (DOS). Coastal zone projects directly undertaken by a state agency or authority require consistency concurrence, as well, regardless of federal agency involvement. Accordingly, Long Island Power Authority (LIPA) projects in the coastal zone require a consistency review completed by LIPA, National Grid (on behalf of LIPA), or another party as agent for LIPA.

6 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 6 of 9 DATE 10/1/10 EP 3 Natural Resource Protection 6.0 EMERGENCY SITUATIONS AFFECTING REGULATED WETLANDS AND PROTECTED WATERS In a natural disaster, accident or other emergency situations where electric or gas facilities are damaged or threatened and must be promptly repaired, there may not be the time to follow normal permitting procedures, especially when public health and safety may be affected. Should such an event occur that impacts critical gas or electric facilities, it is fully expected that National Grid would make every effort to repair the damaged facilities, as soon as possible. In such emergency situations that involve wetlands or other protected waters, call an Environmental Engineer as soon as possible to explain the emergency and the required work. Be prepared to provide a name and telephone number of a local operations contact. An Environmental Engineer will assume the responsibility to interface with the appropriate regulatory agency personnel, prepare all required reports, and will keep your local contact person informed. If an emergency situation occurs requiring an unavoidable impact to wetlands or other protected waters, the NYSDEC, APA (for Adirondack Park wetlands), and ACOE must be notified prior to the commencement of the work. Examples of unavoidable impacts to wetlands and protected waters include changes to preconstruction contours, mechanical clearing, underground utility lines greater than 500 feet, work site discharges resulting in the loss of greater than 1/10 acre of wetland, and permanent access roads installed above preconstruction contours or greater than 500 feet. If regulatory agency notification prior to commencement of work is not possible, then these agencies must be notified within 4 hours after the commencement of the work. Notification must be provided in writing by certified mail, facsimile, or other similar means. The information provided in this notification should include: 1. A description of the proposed (or ongoing) work;. A location map and plan sketch or drawing of the project; 3. Reasons why the situation is an emergency; 4. An estimate of the type and volume of any material to be placed in or adjacent to a wetland or water body; and, 5. A description of any measures taken to minimize impacts to the affected wetland or water body (i.e., hay bales, silt curtains, etc.).

7 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 7 of 9 DATE 10/1/10 EP 3 Natural Resource Protection Upon receipt of this information, the agency will determine whether an emergency really exists and review the project s environmental impacts and, if satisfied, issue an emergency authorization. Emergency activities must be performed in a manner that avoids or minimizes disturbances to protected waters. If for some reason, an Environmental Engineer cannot be contacted within the prescribed 4- hour initial notification time period, the NYSDEC or APA and ACOE should be called directly to explain the job action and seek assistance. The locations and telephone numbers of NYSDEC regional offices are provided in Table BEST MANAGEMENT PRACTICES The Best Management Practices (BMPs) and conditions of any required permits shall be applied to work involving protected waters. National Grid s ROW Access, Maintenance and Construction BMPs include guidance for wetland and stream crossings and erosion controls (see 3.0 of this EG). In general, the following restrictions shall be applied to work involving protected waters: no deposition of slash or debris within stream channels; no accumulation of construction materials or debris within a typical 50 to 100 feet wide buffer area, depending upon terrain and vegetation conditions; no degradation of stream banks; no equipment washing or refueling within the resource or buffer area; no storage of any petroleum or chemical materials within the resource or buffer area; and, maintain herbicide application buffer zones (as specified in ROW management plans) and use of herbicide products labeled for aquatic areas.

8 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 8 of 9 DATE 10/1/10 EP 3 Natural Resource Protection TABLE 1

9 EG-30NY ENVIRONMENTAL GUIDANCE PAGE 9 of 9 DATE 10/1/10 EP 3 Natural Resource Protection Record of Change Date of Review/Revision: Revision Date Description 1 07/01/08 Added Record of Change. 10/1/10 Regarding NYSDEC General Permit /00001, include equipment-cleaning language and reflect some permit changes while highlighting some of the more important permit conditions.